EP2012560A3 - Steuervorrichtung und Steuerverfahren, sowie planare Lichtquelle und Steuerverfahren der planaren Lichtquelle - Google Patents

Steuervorrichtung und Steuerverfahren, sowie planare Lichtquelle und Steuerverfahren der planaren Lichtquelle Download PDF

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Publication number
EP2012560A3
EP2012560A3 EP08159541A EP08159541A EP2012560A3 EP 2012560 A3 EP2012560 A3 EP 2012560A3 EP 08159541 A EP08159541 A EP 08159541A EP 08159541 A EP08159541 A EP 08159541A EP 2012560 A3 EP2012560 A3 EP 2012560A3
Authority
EP
European Patent Office
Prior art keywords
light source
planar light
control method
control value
driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08159541A
Other languages
English (en)
French (fr)
Other versions
EP2012560B1 (de
EP2012560A2 (de
Inventor
Hisao c/o Sony Corporation Sakurai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP2012560A2 publication Critical patent/EP2012560A2/de
Publication of EP2012560A3 publication Critical patent/EP2012560A3/de
Application granted granted Critical
Publication of EP2012560B1 publication Critical patent/EP2012560B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
EP08159541A 2007-07-03 2008-07-02 Steuervorrichtung und Steuerverfahren, sowie planare Lichtquelle und Steuerverfahren der planaren Lichtquelle Active EP2012560B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007174846A JP4450019B2 (ja) 2007-07-03 2007-07-03 制御装置および制御方法、並びに、面状光源装置および面状光源装置の制御方法

Publications (3)

Publication Number Publication Date
EP2012560A2 EP2012560A2 (de) 2009-01-07
EP2012560A3 true EP2012560A3 (de) 2010-03-10
EP2012560B1 EP2012560B1 (de) 2012-08-29

Family

ID=39924930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08159541A Active EP2012560B1 (de) 2007-07-03 2008-07-02 Steuervorrichtung und Steuerverfahren, sowie planare Lichtquelle und Steuerverfahren der planaren Lichtquelle

Country Status (5)

Country Link
US (1) US7903082B2 (de)
EP (1) EP2012560B1 (de)
JP (1) JP4450019B2 (de)
CN (1) CN101340758B (de)
TW (1) TWI408997B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104411061A (zh) * 2014-11-28 2015-03-11 深圳市明微电子股份有限公司 驱动装置、灯具和驱动方法

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JP2009135138A (ja) * 2007-11-28 2009-06-18 Texas Instr Japan Ltd Ｌｅｄ駆動回路
JP4717091B2 (ja) * 2008-02-29 2011-07-06 Ｏｋｉセミコンダクタ株式会社 表示パネル駆動装置
TWI459858B (zh) 2008-06-24 2014-11-01 Eldolab Holding Bv 照明系統及發光二極體組件之控制單元
US7982412B2 (en) * 2008-12-19 2011-07-19 Himax Analogic, Inc. LED circuit with high dimming frequency
WO2010128845A2 (en) 2009-05-04 2010-11-11 Eldolab Holding B.V. Control unit for a led assembly and lighting system
TWI420955B (zh) * 2009-05-27 2013-12-21 Himax Analogic Inc Ｌｅｄ驅動電路及其控制方法
US8304999B2 (en) * 2009-06-08 2012-11-06 Sunpaltech Co., Ltd. LED controlling driver and controlling method thereof
JP5525197B2 (ja) * 2009-07-13 2014-06-18 新日本無線株式会社 調光回路
KR101476858B1 (ko) * 2009-10-08 2014-12-26 엘지디스플레이 주식회사 액정표시장치
IT1396411B1 (it) * 2009-10-30 2012-11-19 Tci Telecomunicazioni Italia Srl Alimentatore con ripple di corrente costante per lampade a led.
US8294379B2 (en) 2009-11-10 2012-10-23 Green Mark Technology Inc. Dimmable LED lamp and dimmable LED lighting apparatus
KR20120120310A (ko) * 2010-02-24 2012-11-01 샤프 가부시키가이샤 화상 표시용 발광 장치, 화상 표시 장치, 및 ｌｅｄ 드라이버
JP5693870B2 (ja) * 2010-04-13 2015-04-01 ミネベア株式会社 スイッチング電源回路
US8587212B2 (en) 2010-08-10 2013-11-19 Industrial Technology Research Institute Lighting system, dimming control apparatus and dimming control method
CN102387628B (zh) * 2010-08-31 2014-01-29 比亚迪股份有限公司 一种led调光控制电路
JP5760169B2 (ja) * 2010-10-25 2015-08-05 パナソニックＩｐマネジメント株式会社 点灯装置および、これを用いた照明器具
DE102010050747A1 (de) * 2010-11-08 2012-05-10 Vishay Electronic Gmbh Schaltungsanordnung zum Betreiben einer Leuchtdiode
CN102395230B (zh) * 2011-05-04 2013-06-12 凹凸电子（武汉）有限公司 控制光源调光的控制器和方法及光源驱动电路
JP5834236B2 (ja) * 2011-05-12 2015-12-16 パナソニックＩｐマネジメント株式会社 固体光源点灯装置およびそれを用いた照明器具
US9370064B2 (en) * 2011-10-06 2016-06-14 National Semiconductor Corporation LED driver having non-linear compensation
CN103124465A (zh) * 2011-11-18 2013-05-29 重庆四联光电科技有限公司 Led灯具的电源冗余方法及装置
CN102402953B (zh) * 2011-12-08 2014-07-16 深圳市华星光电技术有限公司 发光二极管的驱动电路与方法及其应用的显示装置
US9433041B2 (en) 2012-03-21 2016-08-30 Tridonic Gmbh & Co Kg Operating circuit for LEDs, having dimming signal comprising high-frequency modulated pulse packet signal with harmonized frequencies
KR101943417B1 (ko) * 2012-06-11 2019-04-17 삼성전자주식회사 영상표시장치, 영상표시방법, 발광소자 구동장치 및 발광소자 구동방법
EP2790470B1 (de) * 2013-04-08 2018-03-21 Dialog Semiconductor GmbH Programmierbare Stromquelle mit optimierter Konformitätsregion zur effizienten Rückbeleuchtung in tragbaren Anwendungen
CN103345900B (zh) * 2013-06-24 2016-03-02 深圳市明微电子股份有限公司 一种led驱动脉冲调制方法及系统
JP6369929B2 (ja) * 2013-07-11 2018-08-08 Eizo株式会社 表示装置及びバックライトの駆動方法
JP6245506B2 (ja) * 2013-08-26 2017-12-13 パナソニックＩｐマネジメント株式会社 点灯装置
TWI644592B (zh) * 2015-07-03 2018-12-11 點晶科技股份有限公司 控制發光二極體亮度的信號產生方法及電路
KR102395792B1 (ko) * 2017-10-18 2022-05-11 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
CN112634817A (zh) * 2020-12-23 2021-04-09 浙江大学 一种pwm调光装置
CN117082673B (zh) * 2023-10-16 2024-01-26 无锡英迪芯微电子科技股份有限公司 发光器件的亮度控制方法和装置、发光模组

Citations (2)

* Cited by examiner, † Cited by third party
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US20020005861A1 (en) * 2000-04-12 2002-01-17 Roger Lewis Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution
US20070108846A1 (en) * 2004-10-12 2007-05-17 Ian Ashdown Method and system for feedback and control of a luminaire

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JP3584351B2 (ja) * 1998-11-13 2004-11-04 富士通株式会社 液晶表示装置
JP4068317B2 (ja) * 2001-07-27 2008-03-26 Ｎｅｃディスプレイソリューションズ株式会社 液晶表示装置
CN1471071A (zh) * 2002-07-24 2004-01-28 胜园科技股份有限公司 一种使有机发光二极体显示器呈现多种灰阶的方法
JP2004336944A (ja) 2003-05-09 2004-11-25 Canon Inc 電力変換装置及び太陽光発電システム
JP4123183B2 (ja) 2004-04-20 2008-07-23 ソニー株式会社 定電流駆動装置、バックライト光源装置及びカラー液晶表示装置
KR101096720B1 (ko) * 2004-05-28 2011-12-22 엘지디스플레이 주식회사 액정표시장치의 구동장치 및 방법
JP4182930B2 (ja) * 2004-07-12 2008-11-19 ソニー株式会社 表示装置及びバックライト装置
DE102004047669A1 (de) * 2004-09-30 2006-04-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Beleuchtungseinrichtung und Verfahren zur Regelung
TWI277225B (en) * 2005-08-03 2007-03-21 Beyond Innovation Tech Co Ltd Apparatus of light source and adjustable control circuit for LEDs
JP4760363B2 (ja) 2005-12-22 2011-08-31 パナソニック電工株式会社 天井配線モジュール及び配線システム
CN1866086A (zh) * 2006-06-08 2006-11-22 广辉电子股份有限公司 薄膜晶体管液晶显示器的驱动电路及其降低功耗方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020005861A1 (en) * 2000-04-12 2002-01-17 Roger Lewis Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution
US20070108846A1 (en) * 2004-10-12 2007-05-17 Ian Ashdown Method and system for feedback and control of a luminaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104411061A (zh) * 2014-11-28 2015-03-11 深圳市明微电子股份有限公司 驱动装置、灯具和驱动方法

Also Published As

Publication number Publication date
JP2009016104A (ja) 2009-01-22
JP4450019B2 (ja) 2010-04-14
TWI408997B (zh) 2013-09-11
EP2012560B1 (de) 2012-08-29
US7903082B2 (en) 2011-03-08
CN101340758A (zh) 2009-01-07
TW200911026A (en) 2009-03-01
EP2012560A2 (de) 2009-01-07
US20090009105A1 (en) 2009-01-08
CN101340758B (zh) 2011-11-30

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